Fine particles
5.8µg/m³Fair · 1 hourCAMS model • Open-Meteo
LondonAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
London - latest available concentrations (September 26, 2026, 02:00 local time): PM2.5: 5.8 µg/m³, PM10: 7.5 µg/m³, O₃: 46 µg/m³, NO₂: 17.8 µg/m³, SO₂: 1.1 µg/m³, CO: 174 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →London · Air pollutant concentrations
Data time: September 26, 2026 · 02:00 · local timeParticulate matter
7.5µg/m³Good · 1 hourOzone
46µg/m³Good · 1 hourNitrogen dioxide
17.8µg/m³Fair · 1 hourSulphur dioxide
1.1µg/m³Good · 1 hourCarbon monoxide
174µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · London
London - air pollution over recent days (2026-08-31 - 2026-09-25)
Concentrations of all available pollutants for this city.
PM2.5Lowest 3.4 2026-08-31Highest 15.1 2026-09-222026-08-31 - 2026-09-25
PM10Lowest 6.05 2026-08-31Highest 21.81 2026-09-222026-08-31 - 2026-09-25
O₃Lowest 28.88 2026-09-22Highest 61.17 2026-09-192026-08-31 - 2026-09-25
NO₂Lowest 8.05 2026-09-19Highest 48.94 2026-09-222026-08-31 - 2026-09-25
SO₂Lowest 0.47 2026-09-19Highest 3.9 2026-09-222026-08-31 - 2026-09-25
COLowest 128.17 2026-09-03Highest 276.92 2026-09-222026-08-31 - 2026-09-25
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-19 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 12.25 | 5 | 10.1 | 15.1 | 10.49 | 5.33 | 5.05 | 5.79 | 7.6 | 4.88 | 3.77 | 4.03 | 5.38 | 5.02 | 3.4 |
| PM10 | 17.43 | 9.1 | 15.15 | 21.81 | 17.4 | 11.05 | 9.8 | 10.1 | 13.09 | 10.22 | 7.21 | 7.02 | 9.94 | 9.83 | 6.05 |
| O₃ | 39.63 | 45.75 | 48.08 | 28.88 | 35.71 | 57.42 | 61.17 | 53.83 | 49.25 | 51.79 | 45.79 | 45.38 | 52.33 | 50.33 | 56.71 |
| NO₂ | 32.05 | 21.75 | 21.98 | 48.94 | 37.21 | 12.33 | 8.05 | 15.62 | 24.6 | 15.31 | 11.43 | 10.21 | 16.78 | 17.3 | 8.77 |
| SO₂ | 2.38 | 1.56 | 1.6 | 3.9 | 2.85 | 0.86 | 0.47 | 1.08 | 1.47 | 0.97 | 0.72 | 0.64 | 1.05 | 1.18 | 0.6 |
| CO | 219.08 | 202.92 | 202.04 | 276.92 | 256.58 | 195.42 | 172.92 | 160.63 | 186.83 | 170.04 | 141.88 | 128.17 | 160.92 | 172.5 | 162.33 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · London
London - air pollution history (2015-08 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 6.88 2019-09Highest 26.45 2016-122015-08 - 2020-05
PM10Lowest 15.7 2020-02Highest 36.75 2016-122015-08 - 2020-05
O₃Lowest 4.84 2016-12Highest 62.8 2020-052015-08 - 2020-05
NO₂Lowest 20.3 2020-05Highest 71.67 2015-102015-08 - 2020-05
SO₂Lowest 1.23 2020-05Highest 11.5 2017-012015-08 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 10.15 | 14.55 | 8.84 | 6.91 | 11.3 | 10.92 | 12 | 9 | 6.88 | 10.24 | 8.07 | 9.7 | 12.66 | 23.75 | 13.45 | 22.95 | 14.85 | 13.3 | 16.65 | 12.21 | 10.12 | 12.65 | 14.5 | 13.5 | 18.15 | 17.85 | 17.45 | 13.9 | 13.1 | 13.1 | 16.45 | 13.7 | 14.5 | 13.8 | 11.75 | 13.8 | 15.5 | 15.7 | 16.15 | 21.1 | 26.35 | 26.45 | 14.2 | 13.8 | 14 | 12.6 | 11.41 | 13.65 | 16.5 | 13.3 | 18.9 | 13.45 | 10.76 | 13.65 | 14.15 | 19.05 | 12.15 | 13.4 |
| PM10 | 17.5 | 22.65 | 16.6 | 15.7 | 18.55 | 17.65 | 19.65 | 17.15 | 16.05 | 20.05 | 16.85 | 17.6 | 18.7 | 31.95 | 21.2 | 31.55 | 22.6 | 20.1 | 25 | 19.9 | 18.05 | 15.85 | 22.15 | 20.5 | 27 | 25.7 | 26.15 | 22.45 | 19.95 | 19.6 | 23.5 | 20.35 | 18.1 | 19.7 | 17.3 | 19.95 | 22.65 | 22.9 | 22.7 | 29.25 | 34.25 | 36.75 | 21.75 | 21.4 | 22 | 19.1 | 16.5 | 19.1 | 24.5 | 20.6 | 26.45 | 24 | 18.35 | 25 | 24.55 | 27.25 | 15.9 | 18.3 |
| O₃ | 62.8 | 53.5 | 36.8 | 22.9 | 15.4 | 12.5 | 11 | 14.7 | 19.3 | 21.7 | 26.1 | 23.1 | 30.5 | 36.3 | 24.5 | 15.3 | 19.9 | 11.3 | 10.1 | 16.9 | 16 | 14.2 | 30.1 | 32.3 | 35 | 23.8 | 21.9 | 23.8 | 16.9 | 15.8 | 13.5 | 15.8 | 20.7 | 22 | 22.7 | 25.5 | 28.3 | 29.8 | 18.6 | 15.4 | 14.4 | 4.84 | 11 | 15.6 | 10.6 | 17.1 | 7.69 | 19.3 | 35.6 | 24.4 | 21.4 | 16.4 | 13.3 | 16 | 12.9 | 11.5 | 14.7 | 17.7 |
| NO₂ | 20.3 | 27.03 | 34.97 | 38.8 | 44.4 | 45.4 | 49.43 | 42.23 | 38.47 | 37.1 | 40.5 | 41.73 | 42.93 | 44.17 | 46.73 | 58.33 | 58.13 | 57.37 | 54.3 | 60.37 | 60.2 | 48.33 | 60.87 | 53.33 | 68.6 | 60.3 | 59.03 | 54.97 | 56.57 | 52.4 | 61.4 | 55.23 | 54.2 | 57.5 | 54.73 | 52.7 | 51.47 | 55.8 | 54.77 | 56.4 | 69.27 | 70.47 | 62.43 | 59.63 | 58.53 | 56.13 | 49.47 | 60.87 | 62.27 | 68.17 | 63.13 | 63.7 | 65.55 | 60.8 | 55.4 | 71.67 | 62.97 | 51.53 |
| SO₂ | 1.23 | 2.6 | 4.63 | 5.08 | 5.11 | 5.07 | 6.59 | 5.74 | 8.48 | 5.17 | 3.18 | 5.33 | 3.92 | 3.93 | 5.09 | 7.17 | 5.08 | 7.08 | 6.76 | 6.39 | 8.55 | 6.65 | 6.25 | 4.32 | 4.87 | 6.37 | 7.05 | 7.14 | 10.7 | 9.2 | 9.37 | 8.74 | 7.48 | 6.92 | 6.75 | 7.57 | 6 | 5.51 | 7.29 | 8.48 | 11.5 | 10.9 | 9.64 | 7.68 | 8.15 | 8 | 8.78 | 8.64 | 6.92 | 8.31 | 6.6 | — | — | — | — | — | — | — |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Historical data by station 3
AIR QUALITY ARCHIVE · Camden Kerbside
Camden Kerbside
Station code: Camden Kerbside
Monthly monitoring station data.
PM2.5Lowest 6.55 2019-09Highest 27.8 2017-012015-08 - 2020-05
PM10Lowest 12.8 2018-08Highest 36 2017-012015-08 - 2020-05
NO₂Lowest 21 2020-05Highest 78.4 2017-012015-08 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 11.3 | 15.4 | 9.21 | 6.69 | 10.3 | 9.74 | 11.5 | 8.41 | 6.55 | 9.18 | 7.45 | 8.2 | 9.83 | 21.8 | 10.2 | 18.7 | 13.4 | 10.5 | 13.9 | 9.03 | 6.64 | 12.7 | 13.4 | 13.2 | 18.8 | 17.7 | 17.8 | 14.7 | 13.3 | 12.8 | 16.5 | 13.5 | 14.7 | 14.1 | 11.8 | 13.7 | 16.5 | 16.9 | 16.4 | 20.6 | 27.8 | 26.1 | 13.6 | 13.9 | 12.8 | 11.9 | 9.91 | 13.6 | 16.7 | 12.4 | 18.5 | 12.5 | 8.32 | 11.2 | 10.3 | 17.5 | 11.5 | 11.6 |
| PM10 | 18.7 | 23.4 | 16.5 | 14.5 | 17.8 | 16.6 | 19.5 | 16.3 | 15.5 | 18.5 | 15 | 14.2 | 17.5 | 31.9 | 18.5 | 29.4 | 22.1 | 17.7 | 23.3 | 18.1 | 16.1 | 12.8 | 21.4 | 20.1 | 26.9 | 23.4 | 24.9 | 21.9 | 17.6 | 17 | 20 | 17.5 | 16.6 | 19 | 15.9 | 18.1 | 22.5 | 22.4 | 19.6 | 26.4 | 36 | 33.5 | 18.6 | 20.3 | 18.8 | 15.6 | 13.4 | 17.3 | 23.5 | 17.9 | 25.1 | 20.6 | 13.3 | 20.3 | 20.3 | 23.2 | 16.7 | 17 |
| NO₂ | 21 | 26.3 | 28.6 | 30.7 | 41.9 | 39.5 | 48.8 | 36.9 | 34.7 | 34 | 35 | 32.6 | 41.2 | 39.4 | 30 | 47.1 | 51.5 | 45.4 | 44.2 | 46 | 36.7 | 37.6 | 51.1 | 48.9 | 55.7 | 43.6 | 42.7 | 41.7 | 43.5 | 33 | 53.8 | 36.9 | 40.1 | 43.5 | 41.2 | 41.7 | 50 | 54.2 | 43.1 | 52.6 | 78.4 | 69.7 | 62.8 | 58.5 | 52.6 | 46.8 | 42.4 | 60.5 | 64.1 | 65.8 | 58.3 | 55.9 | 52.1 | 36 | 47.9 | 74.7 | 66.1 | 50.8 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗DEFRA
AIR QUALITY ARCHIVE · London Marylebone Road
London Marylebone Road
Station code: London Marylebone Road
Monthly monitoring station data.
PM2.5Lowest 7.12 2020-02Highest 27.2 2019-022015-08 - 2020-05
PM10Lowest 15.1 2015-09Highest 40 2016-122015-08 - 2020-05
O₃Lowest 4.84 2016-12Highest 62.8 2020-052015-08 - 2020-05
NO₂Lowest 23.6 2020-05Highest 102 2018-042015-08 - 2020-05
SO₂Lowest 1.23 2020-05Highest 11.5 2017-012015-08 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 9 | 13.7 | 8.47 | 7.12 | 12.3 | 12.1 | 12.5 | 9.6 | 7.2 | 11.3 | 8.69 | 11.2 | 15.5 | 25.7 | 16.7 | 27.2 | 16.3 | 16.1 | 19.4 | 15.4 | 13.6 | 12.6 | 15.6 | 13.8 | 17.5 | 18 | 17.1 | 13.1 | 12.9 | 13.4 | 16.4 | 13.9 | 14.3 | 13.5 | 11.7 | 13.9 | 14.5 | 14.5 | 15.9 | 21.6 | 24.9 | 26.8 | 14.8 | 13.7 | 15.2 | 13.3 | 12.9 | 13.7 | 16.3 | 14.2 | 19.3 | 14.4 | 13.2 | 16.1 | 18 | 20.6 | 12.8 | 15.2 |
| PM10 | 16.3 | 21.9 | 16.7 | 16.9 | 19.3 | 18.7 | 19.8 | 18 | 16.6 | 21.6 | 18.7 | 21 | 19.9 | 32 | 23.9 | 33.7 | 23.1 | 22.5 | 26.7 | 21.7 | 20 | 18.9 | 22.9 | 20.9 | 27.1 | 28 | 27.4 | 23 | 22.3 | 22.2 | 27 | 23.2 | 19.6 | 20.4 | 18.7 | 21.8 | 22.8 | 23.4 | 25.8 | 32.1 | 32.5 | 40 | 24.9 | 22.5 | 25.2 | 22.6 | 19.6 | 20.9 | 25.5 | 23.3 | 27.8 | 27.4 | 23.4 | 29.7 | 28.8 | 31.3 | 15.1 | 19.6 |
| O₃ | 62.8 | 53.5 | 36.8 | 22.9 | 15.4 | 12.5 | 11 | 14.7 | 19.3 | 21.7 | 26.1 | 23.1 | 30.5 | 36.3 | 24.5 | 15.3 | 19.9 | 11.3 | 10.1 | 16.9 | 16 | 14.2 | 30.1 | 32.3 | 35 | 23.8 | 21.9 | 23.8 | 16.9 | 15.8 | 13.5 | 15.8 | 20.7 | 22 | 22.7 | 25.5 | 28.3 | 29.8 | 18.6 | 15.4 | 14.4 | 4.84 | 11 | 15.6 | 10.6 | 17.1 | 7.69 | 19.3 | 35.6 | 24.4 | 21.4 | 16.4 | 13.3 | 16 | 12.9 | 11.5 | 14.7 | 17.7 |
| NO₂ | 23.6 | 29.8 | 50.2 | 60.2 | 61.4 | 63.7 | 63.6 | 61.3 | 55.5 | 56.9 | 60.7 | 70.1 | 56.6 | 59.6 | 73.4 | 80.4 | 64.5 | 80.2 | 76.5 | 86.5 | 94.4 | 76.9 | 95.2 | 75.7 | 96 | 102 | 84 | 75.4 | 83.4 | 78.6 | 81.3 | 84.4 | 83.8 | 87.1 | 82.9 | 82.4 | 72.3 | 62.7 | 82.1 | 78.4 | 83.9 | 92 | 86.6 | 70.8 | 81.5 | 80.8 | 66.3 | 78.8 | 74.1 | 89.1 | 79.6 | 85.3 | 79 | 85.6 | 82.1 | 89.5 | 72.4 | 71.6 |
| SO₂ | 1.23 | 2.6 | 4.63 | 5.08 | 5.11 | 5.07 | 6.59 | 5.74 | 8.48 | 5.17 | 3.18 | 5.33 | 3.92 | 3.93 | 5.09 | 7.17 | 5.08 | 7.08 | 6.76 | 6.39 | 8.55 | 6.65 | 6.25 | 4.32 | 4.87 | 6.37 | 7.05 | 7.14 | 10.7 | 9.2 | 9.37 | 8.74 | 7.48 | 6.92 | 6.75 | 7.57 | 6 | 5.51 | 7.29 | 8.48 | 11.5 | 10.9 | 9.64 | 7.68 | 8.15 | 8 | 8.78 | 8.64 | 6.92 | 8.31 | 6.6 | — | — | — | — | — | — | — |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗DEFRA
AIR QUALITY ARCHIVE · Tower Hamlets Roadside
Tower Hamlets Roadside
Station code: Tower Hamlets Roadside
Monthly monitoring station data.
NO₂Lowest 16.3 2020-05Highest 58.4 2019-012015-08 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 | 2015-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NO₂ | 16.3 | 25 | 26.1 | 25.5 | 29.9 | 33 | 35.9 | 28.5 | 25.2 | 20.4 | 25.8 | 22.5 | 31 | 33.5 | 36.8 | 47.5 | 58.4 | 46.5 | 42.2 | 48.6 | 49.5 | 30.5 | 36.3 | 35.4 | 54.1 | 35.3 | 50.4 | 47.8 | 42.8 | 45.6 | 49.1 | 44.4 | 38.7 | 41.9 | 40.1 | 34 | 32.1 | 50.5 | 39.1 | 38.2 | 45.5 | 49.7 | 37.9 | 49.6 | 41.5 | 40.8 | 39.7 | 43.3 | 48.6 | 49.6 | 51.5 | 49.9 | — | — | 36.2 | 50.8 | 50.4 | 32.2 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗DEFRA
Environment and quality of life ratings · London
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | London | Isle of Man | Ireland | Netherlands | Belgium | Faroe Islands |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 62% | 78% | 72% | 82% | 64% | 87% |
| Pleasure of spending time in the city | 40% | 83% | 78% | 88% | 64% | 100% |
| Air Pollution | 63% | 13% | 24% | 21% | 45% | 0% |
| Garbage Disposal | 54% | 78% | 61% | 79% | 54% | 88% |
| Availability and quality of drinking water | 53% | 88% | 72% | 92% | 70% | 98% |
| Cleanliness and tidiness | 41% | 69% | 52% | 77% | 46% | 94% |
| Noise and Light pollution | 68% | 12% | 37% | 31% | 54% | 21% |
| Water Pollution | 58% | 13% | 37% | 17% | 42% | 7.7% |
| particulate matter PM2.5 (µg/m³) | 12 | — | — | — | — | — |
| particulate matter PM10 (µg/m³) | 23 | — | — | — | — | — |
WEATHER THROUGH THE YEAR
What is the weather like throughout the year?
Choose a month to compare daytime and nighttime temperatures and the frequency of rain using historical weather data.
POWER
London · September
Mean daily maximum20.6°C
Mean daily minimum10.8°C
Days with rainfall ≥1 mm37.7%
Mean daily maximum temperatures by month · Bar scale starts at -15°C
7°Jan
8.9°Feb
11.1°Mar
13.9°Apr
17.7°May
21.2°Jun
23.4°Jul
23.3°Aug
20.6°Sep
15.9°Oct
10.6°Nov
8.3°Dec
NASA POWER: grid data covering the city. Weather history describes the climate; it is not a forecast or an air quality measurement.
View the data table
| Month | Mean daily maximum °C | Mean daily minimum °C | Days with rainfall ≥1 mm |
|---|---|---|---|
| January | 7 | 1.3 | 42.6% |
| February | 8.9 | 2.3 | 41.7% |
| March | 11.1 | 3.2 | 41.9% |
| April | 13.9 | 4.1 | 31% |
| May | 17.7 | 7.5 | 34.2% |
| June | 21.2 | 10.9 | 32.7% |
| July | 23.4 | 13 | 33.2% |
| August | 23.3 | 12.9 | 31.6% |
| September | 20.6 | 10.8 | 37.7% |
| October | 15.9 | 8.1 | 42.3% |
| November | 10.6 | 4.5 | 43.7% |
| December | 8.3 | 3.6 | 44.5% |
Air quality in nearby cities
All cities →United Kingdom↗
Southampton
PM2.55.4
PM107.7
µg/m³
PM2.5 · FairNO₂ 8.8O₃ 50
September 26, 202602:00
United Kingdom↗
Coventry
PM2.56.9
PM109.8
µg/m³
PM2.5 · FairNO₂ 16O₃ 48
September 26, 202602:00
United Kingdom↗
Leicester
PM2.56.6
PM1010.2
µg/m³
PM2.5 · FairNO₂ 13.9O₃ 46
September 26, 202602:00
United Kingdom↗
Birmingham
PM2.54.6
PM109.1
µg/m³
PM2.5 · GoodNO₂ 12.2O₃ 52
September 26, 202602:00
United Kingdom↗
Bristol
PM2.54
PM108.1
µg/m³
PM2.5 · GoodNO₂ 11.3O₃ 53
September 26, 202602:00
United Kingdom↗
Nottingham
PM2.57.9
PM1011.4
µg/m³
PM2.5 · FairNO₂ 18O₃ 41
September 26, 202602:00
United Kingdom↗
Wolverhampton
PM2.54.4
PM108.4
µg/m³
PM2.5 · GoodNO₂ 5.4O₃ 45
September 26, 202602:00
United Kingdom↗
Cardiff
PM2.54
PM1011.2
µg/m³
PM2.5 · GoodNO₂ 8.6O₃ 61
September 26, 202602:00
United Kingdom · air quality in other cities
WEATHER & SURROUNDINGS
London · weather forecast
Daily maximum and minimum temperatures. Forecast point: 51.5085, -0.1255.
Scroll the forecast to see the following days.
London · September 23, 2026: minimum temperature 12.9°C, maximum 23.8°C. Wind: 15.9 km/h. Humidity: 51%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-23 | 23 | 12.9 | 23.8 | 12.9 | 0.9 | 4.4 | 51 | 39 |
| 2026-09-24 | 18.5 | 10.8 | 20.6 | 13.9 | — | 2.4 | 50 | 96 |
| 2026-09-25 | 22.9 | 11.8 | 23.3 | 15.3 | 10.6 | 3.1 | 62 | 7 |
| 2026-09-26 | 19.4 | 9.4 | 21.3 | 14.8 | 0.4 | 2.8 | 52 | 98 |
| 2026-09-27 | 20.2 | 12.7 | 22.9 | 17 | 0.5 | 4.8 | 65 | 100 |
| 2026-09-28 | 18.8 | 13.6 | 19.9 | 16.3 | 1 | 3.1 | 54 | 99 |
| 2026-09-29 | 22 | 14.7 | 23.9 | 22 | 2.8 | 5.1 | 71 | 37 |
| 2026-09-30 | 21 | 14.9 | 21.4 | 14.9 | 6 | 5.2 | 76 | 88 |
| 2026-10-01 | 17.5 | 11.8 | 18.6 | 14.5 | 0.5 | 3.2 | 52 | 82 |
| 2026-10-02 | 18 | 13.7 | 18 | 14.1 | 1.7 | 5.2 | 66 | 98 |
| 2026-10-03 | 16.5 | 11.2 | 17.7 | 14 | 3.5 | 2.7 | 44 | 21 |
| 2026-10-04 | 18 | 11.7 | 18.8 | 13.8 | 7.4 | 3.4 | 45 | 69 |
| 2026-10-05 | 20.8 | 12.8 | 21 | 15.7 | 1.6 | 2.8 | 39 | 70 |
| 2026-10-06 | 23.2 | 14 | 24.3 | 18.4 | — | 2.4 | 45 | 3 |
| 2026-10-07 | 24.5 | 16.2 | 25.6 | 19.9 | — | 1.7 | 41 | 14 |
| 2026-10-08 | 23.2 | 15.3 | 24.2 | 15.3 | 0.3 | 6.4 | 49 | 79 |
| 2026-10-09 | 15.3 | 12.3 | 15.3 | 14.4 | 0.9 | 7.7 | 42 | 41 |
| 2026-10-10 | 19.5 | 12.3 | 19.5 | 19.5 | — | 6 | 54 | 93 |
UV index by day · London
City data.
Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
London · September 25, 2026: UV index: 3 .
| Indicator | 2026-09-25 | 2026-09-26 | 2026-09-27 | 2026-09-28 | 2026-09-29 | 2026-09-30 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-10-04 | 2026-10-05 | 2026-10-06 | 2026-10-07 | 2026-10-08 | 2026-10-09 | 2026-10-10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 3 | 3 | 3.7 | 0.9 | 2.4 | 1.2 | 3.3 | 3 | 3 | 3.5 | 3.4 | 3.3 | 3.3 | 2.5 | 1.6 | — |
AIR QUALITY QUESTIONS
London · air pollution - questions and answers
What do the latest air quality data show for London?
London - latest available concentrations (September 26, 2026, 02:00 local time): PM2.5: 5.8 µg/m³, PM10: 7.5 µg/m³, O₃: 46 µg/m³, NO₂: 17.8 µg/m³, SO₂: 1.1 µg/m³, CO: 174 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in London over the past week?
The highest available daily mean PM2.5 was 15.1 µg/m³ (September 22, 2026). This comparison covers 7 days with data in the seven days before September 26, 2026. The day of the latest reading is excluded because it may be incomplete.
What period does the pollution history for London cover?
Available monthly means cover 2015-08 - 2020-05. The tables include PM2.5, PM10, O₃, NO₂, SO₂. Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for London an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for London?
For September 25, 2026, the forecast UV index is 3. The UV section also shows the following available days.
What wind speed is forecast for London?
For September 23, 2026, forecast wind speed is 15.9 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.